The valence electron affinity of uracil determined by anion cluster photoelectron spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00588377" target="_blank" >RIV/61388955:_____/24:00588377 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0355277" target="_blank" >https://hdl.handle.net/11104/0355277</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4cp02146k" target="_blank" >10.1039/d4cp02146k</a>
Alternative languages
Result language
angličtina
Original language name
The valence electron affinity of uracil determined by anion cluster photoelectron spectroscopy
Original language description
The unoccupied pi* orbitals of the nucleobases are considered to play important roles in low-energy electron attachment to DNA, inducing damage. While the lowest anionic valence state is vertically unbound in all neutral nucleobases, it remains unclear even for the simplest nucleobase, uracil (U), whether its valence anion (U-) is adiabatically bound, which has important implications on the efficacy of damage processes. Using anion photoelectron spectroscopy, we demonstrate that the valence electron affinity (EAV) of U can be accurately measured within weakly solvating clusters, U-(Ar)n and U-(N2)n. Through extrapolation to the isolated U limit, we show that EAV =2 +/- 18 meV. We discuss these findings in the context of electron attachment to U and its reorganization energy, and more generally establish guidance for the determination of molecular electron affinities from the photoelectron spectroscopy of anion clusters.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EH22_008%2F0004649" target="_blank" >EH22_008/0004649: Quantum Engineering and Nanotechnology</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Chemistry Chemical Physics
ISSN
1463-9076
e-ISSN
1463-9084
Volume of the periodical
26
Issue of the periodical within the volume
29
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
20037-20045
UT code for WoS article
001270902200001
EID of the result in the Scopus database
2-s2.0-85199414129